If you get injectors, make sure the person doing the tuning knows exactly how they are built. I had some 175s with the spill ports plugged. I bought custom tunes from someone else and told them what was done. I had idle problems, rpms hanging while shifting(manual). the tunes weren't right.
also I run warrens 190/75 now, I had 175/75s and was told some companies have a hard time getting those right. some guys just like certain size injectors so I agree with nick, if Nate will be doing your tunes check with him. idk about you, but I started at 175s, now 190s and thinking of jumping to a 205. lol